Their invention, RoboKeg, makes getting a beer at a crowded concert or bar as easy as waving a hand. It's an automated beer dispenser that can keep track of who's ordering what and how much, and you don't need your wallet or even your cellphone to use it.

Here's how it works: Many bars, clubs and events use wristbands to keep track of who's able to purchase alcohol, so you aren't elbowing your fellow concertgoers while fishing out your driver's license every time you want a drink.

The idea behind RoboKeg is to put a small near-field communication chip in these wristbands that can automate the purchasing and pouring, making those long beer lines fly by faster than you can say 'hit me'